Because the audio and video elements open a channel without the nsIChannel::LOAD_CLASSIFY_URI loadflag, the tracking protection list doesn't apply to them.

This patch works, but I'm not sure we need to classify the channel in those three call sites. The dom/html/HTMLMediaElement one seems to be the only one that matters.

Comment on attachment 8697239 [details] [diff] [review] bug1231557.patch Review of attachment 8697239 [details] [diff] [review]: ----------------------------------------------------------------- I think we're better off adding the flag to all of our call sites, otherwise a site could load a video to a URL that on first load that doesn't track, and then seek the video, causing us to hit the recreate-channel path, which the server could redirect to a URL which *does* track.